Push negotiation callback #1396
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Remote.ls_remotes() used to force a new connection to the remote. This can be harmful if a connection was already set up for other purposes, e.g. when calling ls_remotes from RemoteCallbacks.push_negotiation. This new argument `ls_remotes(..., connect)` lets you bypass the automatic connection.
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This PR does two things:
git_remote_callbacks.push_negotiationto Python code (viaRemoteCallbacks).connectargument toRemote.ls_remotes(). This lets you tellls_remoteto skip its default connection step, which is harmful if callingls_remotesfromRemoteCallbacks.push_negotiation.Some background info:
My use case is to implement an equivalent of
git push --force-with-lease. To achieve this, I needpush_negotiationwhich is called right before the transfer actually begins.My negotiation callback uses
Remote.ls_remotesto determine whether the repo has stale information about the remote branch to force-push to, in which case the push should be rejected.However,
Remote.ls_remotescurrently forces a new connection to the remote. This invalidates the existing connection that was set up by the push - causing the push fail. So, this PR also lets you tellls_remotesto not override the current connection (by passingconnect=False).